Cutting-machine.



W. G. ABBOTT, JR.

CUTTING MACHINE. APPLICATION FILED MAR. 2, |815.

Patented Jan. 8, 1918.

4 SHEETS-SHEET l. I @-65 f5/pijl c Z W. G. ABBOTT, IR.

CUTTING MACHINE.

APPLICATION FILED MAH. 2. 1915.

l. Patented Aam. 8,1918.

4 SHEETS-SHEET 2.

QAM ...I AMIL- @w @2f/ma A .9

W.,G.'ABB0TT,1R.

CUTTING MACHINE.

APPLICATION FILED MAR. 2| 1915. i gs, 9 A Patented Jan. 8, 1918.

4 SHEETS-SHEET 4.

=IHI|IH ll IHIHIIIIII IHUW WILLIAM GEORGE ABBOTT, Jn., or WILTON, NEWVHAMPSHIRE, `AS1-sleuven,' roATLANTIc mais@ tinten.

TERRA GOTTA COMPANY, OF NEW- YORK, N.l Y.,y A CORPORATION OF NEW YORK.

ycU'r'rINer-lvLeCHINE.

Specification of Letters Patent.` l Jah.' 8, 1918-.

Application led March 2,1915. Serial No. 11,589.

ting out .depressions in the faces of plaster models from which Aare made building blocks for bricks of terra cotta, cement, clayor similar materials, or for rabbetmg the blocks themselves. In preparing blocks of this character `it is customary to dig out or chip out, by hand, a depression or recess in the faces of the models corresponding to the faces of the blocks which Vare to be juxtaposed .in building, Aand to plane Gif or level the surfaces surrounding the depressions-so that a close and4 even joint may be secured between adjacent blocks. The depressionsk in the blocks may be filled with cement or mortar. This method of forming the depressions, vwhether in the models' or in the blocks themselves. is slow. crude and expensive, and Vit is the'principal object of the present invention to provide a machine.

which will cut said depression quicklv. accurately and neatly. without danger of breaking ork cracking the work. `It will be understcod that the blocks are usually made in molds. formed fromy plaster models, but the invention is equally applicable to recessing or rabbeting either the models or the blocks themselves which are `made in the molds. f

In: the accompanying drawings which illustrate oneV embodiment of'V the invention.- A f Y Figure 1 is a side-elevation ofthe machine; f

Fig. 2 isa front. elevation of the machine;

Fig. 3 is an enlarged cross section of the cutter head, on line 3-3 of Fig. 1 ;Y y

Fig. 4 is a detail view, partly in section and partly in elevation, on line o Fig. 3;

Fig. 5 is a face view of the cutting tool;

Fig. 6 vis a sectional view of the cuttery head on line (iV-G of Fig. 2; y

Fim? is a section on line 7-#7 of Fig. 3;.

" Fig. 8 is a section on line 8--8 of Fig. 6;

Fig. 9`is a sectionalview, partly broken lawav, on line 9 9 of Fig. 2*; f

Fig. 10 is asectionon line 10-10 of' Fig. 9;

9;and

F ig. 12 is a perspective view of the finished model or block..

Referring to the drawings, 15 represents the frame ofthe machine by `which the work- `ing parts are carried, and 1G"is the work table Vfor lsupporti-ng the'block B to be operated upon. The-table 16 is provided at its forward end with a flange or stop 17 to engage the block or model in correct position for the Acutting operation. As. blocks Yor models of various sizes are to beV treated, the table ymaybe provided with removable pegs 18 (Fig. 1) which are inserted in conveniently .disposed holes in the table.- Wedges 19 are then 'forced between the-block or Fig. 11 is a `section on line 11--11 of Fig,

model Band pegsY 18. tol clamp the same y firmly in position on thetable.

The rotar;V cutting tool C, for cutting or reaming ont the depression in the face ofthe model or block, is carried by a cutter head or carrier, indicated generally at A, and is capable of movement both laterally and vertically, while the cutter. is rotating, to -cover the area of the depression to becut, and may alsobe moved toward and from ,the model or block so'as to be forced into and retracted `fromthe surface of the work. These several vmovements areprovided for by the follow'- ing structures:

a direction parallel to the face of the work, f

' comprises. a horizontally slidingr frame 20 f (Figs. 1,'9. 10 and'll) resting on tracks 21 v'and secured to the machineF frame 15. A

j bracket 23 is sccuredto the front of the 'slide 20, `and constitutesa part of Vthe `sliding frame projecting in -front' of the table 16. Flangesor lips 24' and'25 are secured to the ends of slide 20,' and engage the under sides of tracks 21 and 22v respectively to hold the f slide in engagement with the tracks and prevent the racks and plnions 'which operatethe slide from disengaglng.

Ashat't 26'is journaledon the slide. andi carries pinions 27 and 2S, keyed to said shaft.- i

Said pinions engage racks 29 and SO-secured respectivelyto.l tracks 21 and 22. The rotation.' of shaft; 26fmoves the, slide .laterally through said' racks" and pinionsl Such'-rotal tion is effected by hand wheel journaled on bracket v23,througl`1`s"l'1alft- 32, pinion 33,

intermediate' gea-ri 34, andlgear '-35 (nasa-id4 short -sleeye' 39`ismountedf1.t'o turn in :the y housing 38, `and has `key'editheretopa Ypiniony i 40,A meshing' with Irackf?, and' 'a worm .gear 4l. Inside of SleeVeBQ-isa'sleeve l42pinned ,I

v to thehousingBS,yconsti-tutingthe bear-ing head A7111@ -211161 downon'ruprightsf36;/- v nlgtheforwardend ofi cutter sha-ft`i43ris" inserted and lixedffaVsleevefLlZ-'havingrza .ta-- pered -bor'exftof f .receive the; .correspondingly anayfromcthe Amodel or block-'z' lV-h'en then.-

shaft and cutter are pushed forwardlrintom' fiflleiflleiisizns 38 l for. sleeve 391, fand',v the' journal forrthe' ro-V tary. cutter sha-ftlor spindle 43. l. 'Y

The worlngeer 4l., meshes with a wormf44,L

fixed ltolT shaft 45,1'wl1ich-l carries; a hand wheel: f 46. 5 Rotation. of hand wheel 46 acts'through' u pini-on 4'01 and? .f rack- 37, to-Jnnjve thek cutter.-

'may be ,-insertedarto drive; the-,stem ofthe'L cutter; out: oi lsleeve? 47.,

The; cutter; shaft 43 isv driven: through a pulley 49, keyed:v fo ,the shaft;- vA handl'eV '50c on fthe enfdo'shaftr 43 is" provided @for moin' 1. ing theshafft and cutter ed'wisetowardand 1d or projected position. -vThe ykeylff;

isj

' `cie11'it.,toL withdrawth. quitter?v from '.thegldee pression in the modeler bloclC-lanld;toiclearfgrterial cut out Ifrom the-*model '.or'block'may.

thefaeerthereof;

' '7'tool.

; the {axis-,ofthe:toolsofas:to bevel the edges `tof the depression cutbythetool. .zzT-lel'leadl" ing or Cuttingedges-f thezbentvove'r ends;-l 72 `ofi-the;lolade'-Iarealsoa littleifarther ffroir'if- Y "thefxcenter ofI 'the ytool than 3 `vthe following-5 igs.A 4, 9 and 11,-54 is the vmain driving shaft, journaled inthe frame 1,5 of the vnia-YYY Y chine.' from any convenient Vsource `ofpo'werfA pulley56ris mounted on shaft 54 to turn therewith but to slide lengthwise thereof,

vsaic'lfpulley and shaft being connected by av .feather''wliich works in ay groove 58V asin theshaft (Fig-f 11.).; Pulley 56 is moved laterally of the machine with theslide 20 by means of brackets59, whichextend down- Shaift 54 is rotated pulley'55 wardrfrom the slide at leach' side of the -pul- Another'pulley shaftl k60, mounted. ,on'ithey 1- under v.side of bracket `23, carries two idler* pulleys 61 and 62j,- arranged sidelbyy side;V and at the top .of the :uprights '36 isanother 'idlery' pulley 63. On the cutter head Asb'elowthe' cutter pulley 49 isthe frame-A38'. -c

pulley 64, journaled 'on' ley 56 with'thecutterpulley 49, `in all posii tions ole-the cutter headA.l The courseofff the-cable 65,?following its 'direction of travela; f

'indicatedifby arrowsand starting from the' top offpulley`56, is asffollows: From-'their top of pulley 56 the lcable extends' under'pul-V` ley-:,62, thence upward 'and overl "pulley'63,-w thence downward and under pulley'. 64,.

thence upward-'anderer pulley 49,1 thence* downwardand under'pulley 61%: and `thencev 1 arQund pulley 56; i It Willbe observed'that'ja loop 1is? thus; 'formed around'pulley 49iaf-'f fcrdflflfsuicient` f friet-ional engagementy to dri-Ve the lcutting' tool, and that-as the cut-1 ter headl Ax-isfraised or? loweredon the uplrights 3.6, thisloop williollow the pulley 49,-;s'o thatv the c'able will alwaysfbe in *dri-Vf L ing .engagement withvtlie vcutter pulley 49: f

Asfthe 'driving strain; of the :cable is down-l lwaldo'ncutter head aswell as Athe weight-f" :1 of the-cutter' hea-d, lproyide a counterwei ght 66,-,wh1clfigis connected. withA the'. cutterv head'` f;

sistsgofait'he' bladev carrier -orclislr-YO, herring:

a bejVeledoI-l conical periphery, andthehlade if 71 fofg U'-s`hapedf or bail-:like form; .secured at:-

its ends to the conical-periphery of the dislr-r The; blade :is 'twisted slightly g at the middle,

andqfa-t OPSteffSi'desofwthe center ot'fgtlieiy The bent over ends 72 'are inclined thuSrpr-e'sentingltwo ysalient or; advanced :cuteJ ting edges 73 on opposite edges ofthe blade edges. Vhen the cutter is operatedl the passfbetween "-,thez'rbl'ade' andvithe'; disk and? drop out clear of thecutt'erl' i:

Y I f 815 TheQbelt or'cable 65 connects driving pulwhich the depression is to be cut, is clamped on the work table in the manner already de` scribed, the cutting tool being in retracted position, which is permitted by lifting the yokeV 51. The tool is brought opposite the point -of themodel ,or block Vwhere the cutwith hand' wheel 31, and shifting the cutter y head vertically'with hand wheel 46. The rotating cutting tool is then forced forward into the face of themodel or block by the handle 50. As soon asthe tool reaches its forwardmost or operative position tlieyoke 51 will drop intoplace, locking the tool in cutting position. The'cutter head isl then shifted horizontally and vertically by hand wheels 31 and 46, untilthe entire depression desired inthe face of themodel'or block has been cut or reamed out. In Fig. 2 the de-V pression Bis shown as only partly finished;

in Fig. 12 the depression B is shown as finT v ished. c Y ,Y .Y

Vhen the cutting has been finished the cutter may be withdrawn again from the depression B` by lifting yoke 51.vv

Itis to be understood that such words, as

' horizontally, vertically, upwardly, downwardly, etc., are herein employed merely in a relative sense more convenientlyto refer to relative directions and positions, and -that they are not necessarilylimited to absolute directions and locations with reference toy the earths surface, although in the preferred embodiment of the invention they ,are also accurately descriptive of absolute directions and locations.

I claim: e

l. In a machine of the character described7 a stationary work support, a carriage mounted to move in a direction parallel to the surface of the work, a tool carrier mounted to move on said carriage in a direction transverse to the direction of movement of said carriage but parallel to the surface of the work, a rotary cutting tool reciprocatably mounted'.v on saidtool carrier, so` as to be moved to and from the work, stationary power means, and driving mechanism connecting the power means to the cutting tool so as to rotate the cutting tool in all positions thereof.

'2. In a machine of the character described, a stationary work support, a laterally reciprocating frame mounted to move in al direction parallel to the surface of the work, an upright frame mounted on said reciprocating frame, a cutter head mounted to move vertically on said upright frame, a rotary cutting tool journaled in said cutter head, means to shift said cutting tool relatively to the cutter head and to the Work, stationary power means, and driving mechanism connecting the power means to the cutting tool so as to rotate the cutting tool in all positions of the cutter head.

3. In a machine of the character described,

a stationary work support, a carriage mounted` to movein a direction parallel'to the surface of the work, a tool carrier mounted to move on said carriage in a direction transverse .to the direction of movement of said carriage but parallel to the surface of the work, a rotary cutting tool mounted on said toolcarrier, and driving mechanism operative to rotate said cutting tool in all positions thereof, comprising a cutter pulleyon.

the tool carrier, a driving belt or cable engagingv said cutter' pulley in all positions of the tool carrier, pulleys mounted on the carriage onfopposite sides of the tool carrier substantially in alinement with the path of movement of the tool carrier on the carriage, said belt pas-sing over the latter pulleys so that a portion thereof is disposed along said path of movement in engagement with the cutter pulley in all positions of the tool car` rier.

4. In almachine of the character described, a work support, a carriage mounted to move' in a direction parallel to the surface of the work, a tool carrier mounted to move on said carriage in a direction transverse to the direction of movement of said carriage but parallel to the surface of the work, a rotary cutting tool mounted on said tool carrier, driving mechanism operative to rotate said cutting tool in all positions thereof comprising a cutter pulley on the tool carrier, a guide pulley on the tool carrier adjacent the cutter pulley, pulleys mounted on thecarriage on opposite sid-es of the tool carrier substantially in alinement with the path of movement of the tool carrier on the carriage, and a belt passing over the latter pulleys so that a portion thereof is disposed along said path of movement inengagenient with thecutter and guide pulleys in all positions of the tool carrier, the guide pulley, being so disposed with respect to the cutter pulley as to cause the belt to engage the cutter pulley vthioughout a relatively large angle.

In a machine of the character described, a stationary work support, a laterally reciprocating frame, a pair of iiprights fixed to said frame, a cutter head mounted to slide vertically on said uprights, a rotary cutting tool journaled in said cutter head, stationary power means, and driving mechanism connecting the power means to the cutting tool so as to rotate the cutting tool in all positions of the cutter head.

6. In a machine of the character described, a horizontal work support, a movable carriage mounted at least in part at one side of the support so as to be moved along that side, an upright frame extending vertically from the carriage at one side of the work on the support, a cutter head mounted to iso slideiivertieaiiy" mi said upright fram@ aL rotary cutting tool journaled -in said cutter Vpulley mounted on said. shaft to turn there@ with and to slide lengthwise thereof, said pulley being shifted on said shaft with theilateralmovement of the carriage, a ,pair- `of idler pulleys at the lower'i end of said ulpright frame, an idler pulley at the upper end offsaidupright frame, a cutter pulleyA 0n-said cutter head for rotating the cutting tool, and abelt or cable passing around sai-d v.

lio-

ydriving-'pulley, under both of saidlower idlerv pulleys', over said upper idler pulley, and in driving engagement with said cutterl pulley, whereby the cutter pulley 'travels' along lthe portion of the belt or cable exvtending between the upper and lower idler pulleys in operative engagement therewith asthe cutter head'is moved vertically on the upright frame. l y' 8'. lnja' machine of the character described,V a cutter head comprising a housing, a fixed sleeve in the housing, a rotatable sleeve sur-l rounding the fixed sleeve, means engaging the rotatable sleeve for transversely moving the head, and a rotaryV cutter shaft journaled insaid fixed sleeve.

` 9. In amachineof the character described, a cutter head comprising a housing, a fixedlsleeve in the housing, a rotatable sleeve sur rounding lthe, fixedV sleeve and carryingv a pinion, agear meshing with the lpinion for transversely moving the head, and a rotary' Copies of this patent' maybev obtained for agressif. f

@after Sima jouent-isa in matinee new@ f and? movable lengthwise thereof.

@10; Ina machine Vofthe cha racter described,

a cutter headcoinprising a housing, afixed sleeve' inl they housing, arot'atable Vsleeve sure rounding the fixed l sleeve, means' engaging the rotatable sleeve for transversely movingV the head, a rotary cutters-haft journaled in f saidfixed sleeveand' .movable lengthwise thereof, fand means positively tohold said shaftV infitsforward or projected'v positions Il.. In a machine' ofthe character described, A a cutter headcomprising ahousing, a' fixed sleeve in thehousing',avrotatable sleevesur roundingr the fixed sleeve, af pinionfixed to the rotatable' sleeve 'adapted touengage a raok`,fa"worm gearV fixed to said? rotatable ing-.andmesh-ing with said worinfgear, and

a.r rota-rycutter! Sha-ftjournaled in vsaid fixed! Y inV said housing, av rotatable sleeve surrounding the xed sleeve, a pi'nionf'fixed'tothe rotatable sleeve meslliingavith'- saidrack, a worin gear ixedto said rotatable sleeve, worin` mounted tofturn inthe' housing and ofthe ch aract'erdescrib ed,

meshing with said worm gear, anda rotary! cutter' shaft: jourria-led in: -sa-idfixedsleeve.

j 131.1111 a machine of the character"described, Y Y

a' 4cutter head comprising ahousing, a sleeve rotatably n'fi'ounted.y therein, al pinion iixed to' said-sleeve, a rotary cutter shaft jour- Y 

